[MACFARLANE] IMPROVED METHOD OF PRODUCING MANURE 95 
a great advantage to agriculture. ‘The value of town excreta has 
been estimated by different German authorities at from 370,000 to 
1,500,000 marks annually per 100,000 of population. Heiden places 
it at 10-38 marks per individual per annum. I believe that a con- 
servative estimate in this country would be $2 .— annually per person, 
and that the collection could be made by the dry moss system, so as 
to leave a handsome profit. Of course, difficulties will be encoun- 
tered; there is no beneficent project that is not beset with such. 
Among the greatest of these will be the indifference of the individual, 
who, for the last thirty years has been urged to follow methods, such 
as the water-borne system, which lead in an entirely different direc- 
tion. Let us hope, however, that when our municipal authorities 
are shown “a more excellent way” they will no longer be parties to 
the pollution of our rivers and lakes, but, remembering that “ clean- 
liness is next to godliness,” will endeavour to persuade their various 
populations to take heed to the commandment of Moses, which 
says: — “Turn back, and cover that which cometh from thee.” 
